It's this kind of intelligent thinking which explains why Batman, Robin, Chief O'Hara and and Commissioner Gordon were a force to be reckoned with
Commissioner Gordon: It could be any one of them. But which one? Which ones?
Batman: Pretty *fishy* what happened to me on that ladder.
Commissioner Gordon: You mean where there's a fish there could be a Penguin?
Robin: But wait! It happened at sea. See? C for Catwoman!
Batman: Yet, an exploding shark *was* pulling my leg...
Commissioner Gordon: The Joker!
Chief O'Hara: All adds up to a sinister riddle. Riddle-R. Riddler!
Commissioner Gordon: Oh, the thought strikes me. So dreadful, I scarcely dare give it utterance.
Batman: The four of them. Their forces combined.
Robin: Holy nightmare!